| WANG Hai-tang,LI Yuan-dong,YANG Gui-rong,LIU Sheng-long,HAO Yuan.Microstructure and Properties of Ni/WC Composite Infiltrated Layer on Cast Iron Surface[J],37(5):10-12 |
| Microstructure and Properties of Ni/WC Composite Infiltrated Layer on Cast Iron Surface |
| Received:June 20, 2008 Revised:October 10, 2008 |
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| DOI： |
| KeyWord:Composite infiltrated layer Vacuum infiltration casting technology Structure Cast iron Tungsten carbide |
| Author | Institution |
| WANG Hai-tang |
1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou , China; 2. Key Laboratory of Non-ferrous Metal Alloys, The Ministry of Education, Lanzhou University of Technology, Lanzhou , China |
| LI Yuan-dong |
1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou , China; 2. Key Laboratory of Non-ferrous Metal Alloys, The Ministry of Education, Lanzhou University of Technology, Lanzhou , China |
| YANG Gui-rong |
1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou , China; 2. Key Laboratory of Non-ferrous Metal Alloys, The Ministry of Education, Lanzhou University of Technology, Lanzhou , China |
| LIU Sheng-long |
Jiugang Mechanical Manufacturing Corporation, Jiayuguan , China |
| HAO Yuan |
1. State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou , China; 2. Key Laboratory of Non-ferrous Metal Alloys, The Ministry of Education, Lanzhou University of Technology, Lanzhou , China |
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| Abstract: |
| In order to obtain the surface of cast iron with higher hardness, better property, lower price, Ni-based surface infiltrated composite layer with different content of WC was fabricated on cast iron substrate through vacuum infiltration casting technology. The microstructure, phase, distribution of elements, macro-hardness and micro-hardness were investigated by SEM, XRD, EPMA and other methods. The results show that the distribution of WC in the layer is uniform. the structure of layer is densification, the interface combines very well. The layer is composed of Ni-based solid solution, W2C, NiB and FeB, which can enhance the hardness of layer notable. Finally the obtained layer with good metallurgic property and better hardness on cast iron, which achieves the goal of made and meet the demand of application. |
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